An Electronic Device Having a Rolling Display Comprising Magnetic Means for Flattening the Display When Extracted

1. An electronic device comprising: a chassis module comprising a body having a rounded edge and a first part of a magnetic pair in at least a mid-section of the body proximal to the rounded edge, and a rolling display arrangement partially enclosing the chassis module to slide between a retracted position and an extended position, wherein the rolling display arrangement comprises: a foldable sheet, a support arrangement arranged to support the foldable sheet, and a second part of the magnetic pair in at least a section opposing the first part of the magnetic pair when the rolling display arrangement is in the retracted position, the first part and the second part of the magnetic pair being magnetically attracted to each other.

2. The electronic device according to claim 1, wherein the first part of the magnetic pair is a static magnet and wherein the second part of the magnetic pair is a magnetic material.

3. The electronic device according to claim 1, wherein the foldable sheet is a flexible display having a plastic base layer.

4. The electronic device according to claim 3, wherein a magnetic material is included in or attached to the plastic base layer.

5. The electronic device according to claim 1, wherein the support arrangement comprises a plurality of parallel support rods arranged perpendicular to a sliding direction to support the foldable sheet.

6. The electronic device according to claim 5, wherein each support rod is tapered from a base section to an apex section, the base section being attached to the foldable sheet.

7. The electronic device according to claim 6, wherein apex sections of the support rods are moved towards each other when the foldable sheet is folded around the rounded edge of the chassis module.

8. The electronic device according claim 1, wherein the body of the chassis module is oblong having a pair of opposing short edges and a pair of opposing longer edges, the rounded edge being one of the longer edges.

9. The electronic device according claim 1, wherein the first part of the magnetic pair is a static magnet having a planar side facing the rolling display arrangement.

10. The electronic device according claim 1, wherein the first part of the magnetic pair is static magnet formed as a roll configured to turn when the rolling display arrangement is slid between the retracted position and the extended position.

11. The electronic device according to claim 1, wherein at least one roller is positioned adjacent to the first part of the magnetic pair, the roller(s) having a diameter larger than thickness of the body to provide for a clearance between a surface of the first part of the magnetic pair and the rolling display arrangement.

12. The electronic device according to claim 10, wherein the first part of the magnetic pair and at least one rollers is positioned co-axially in the body of the chassis module, an axis being parallel to the rounded edge.

13. The electronic device according to claim 10, wherein at least one rollers is co-axially disposed adjacent opposite ends of the first part of the magnetic pair.

14. The electronic device according to claim 1, wherein magnetic attraction between the first part and the second part of the magnetic pair is to prevent bulging of the rolling display arrangement.

15. The electronic device according to claim 1, wherein the first part of the magnetic pair is provided on both sides of the body of the chassis module to prevent bulging on both sides of the electronic device.

16. The electronic device according to claim 1, wherein the second part of the magnetic pair is arranged in a section of the rolling display arrangement opposing the first part of the magnetic pair when the rolling display arrangement is in the retracted, extended and any intermediary position.

17. The electronic device according to claim 1, wherein the second part of the magnetic pair is present in entire extent of the rolling display arrangement.

18. The electronic device according to claim 2, wherein the second part of the magnetic pair is a metal foil provided on or incorporated in a plastic base layer of a flexible display.